This function should exit the calling script:
crash() {
echo error
exit 1
}
This works as expected:
echo before
crash
echo after # execution never reaches here
But this does not:
echo before
x=$(crash) # nothing is printed, and execution continues
echo after # this is printed
How do I capture the result of a function, as well as allow it to exit?
This is because $(crash) executes crash in a subshell, so the exit applies to the subshell and not to your script.
What is the point of capturing the output in a variable if you won't use it because the script exited anyway?
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